CN219846135U - Inner container of cooking utensil and cooking utensil - Google Patents
Inner container of cooking utensil and cooking utensil Download PDFInfo
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- CN219846135U CN219846135U CN202320808430.0U CN202320808430U CN219846135U CN 219846135 U CN219846135 U CN 219846135U CN 202320808430 U CN202320808430 U CN 202320808430U CN 219846135 U CN219846135 U CN 219846135U
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- Prior art keywords
- flange
- liner
- flanging
- pot
- cooking utensil
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- 238000010411 cooking Methods 0.000 title claims abstract description 52
- 229910052751 metal Inorganic materials 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 35
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- 238000000576 coating method Methods 0.000 claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims description 37
- 238000007514 turning Methods 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 235000007164 Oryza sativa Nutrition 0.000 abstract description 33
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- 238000010438 heat treatment Methods 0.000 description 5
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Landscapes
- Cookers (AREA)
Abstract
The utility model discloses an inner container of a cooking utensil, which comprises a body and a flanging formed by outwards bending the top end of the side wall of the body, wherein the body at least comprises an inner metal layer and a heat conducting layer, the inner surface of the inner metal layer is provided with an anti-sticking surface formed by a plurality of micro-scale protrusions or grooves, the outer boundary of the anti-sticking surface at least extends to the inner bending part of the flanging, the inner metal layer on the top surface of the flanging is polished or turned to be thinned to form a smooth surface, the protrusions or grooves on the outer edge of the inner bending part are polished or turned to form a boundary line between the anti-sticking surface and the smooth surface, and the polished or turned thickness is larger than the height of the protrusions or the depth of the grooves and is smaller than 1/3 of the thickness of the inner metal layer. A layer of water-wetting film can be formed on the physical anti-sticking surface so as to reduce the bonding strength and the adhesiveness of rice and the inner wall of the liner, and finally, the effect of no coating and no adhesion is realized. The utility model also provides a cooking utensil, including the pot body and pot cover, the pot body includes outer pot and above-mentioned inner bag, the inner bag is placed in outer pot.
Description
[ field of technology ]
The utility model relates to the technical field of kitchen appliances, in particular to a liner of a cooking appliance and the cooking appliance.
[ background Art ]
The existing electric heating cooker such as an electric cooker generally comprises a cooker body and a cooker cover, wherein an inner container and a heating device such as a heating disc or an IH wire coil are arranged in the cooker body, the inner container is generally made of metal materials, and heat can be transferred to the inner container after the heating device is electrified, so that rice in the inner container can be heated and cured. However, the electric cooker is sticky in the cooking process, so that the inner container is difficult to clean after meal, and the use experience of a user is deteriorated. In order to solve the technical problem in the prior art, a non-stick coating layer taking polytetrafluoroethylene as a main raw material is arranged on the inner wall of the liner, but the non-stick coating layer is easy to fall off in a long-term cooking process, particularly under the conditions of high-temperature cooking and dry burning, the non-stick coating layer is easier to fall off, and certain toxic substances are decomposed and released while the anti-sticking effect is influenced, so that food is polluted and the health of people is influenced to a certain extent.
[ utility model ]
The utility model aims to solve the technical problems of overcoming the defects of the prior art and providing the liner of the cooking utensil and the cooking utensil, wherein a layer of water-wetting film can be formed on the physical anti-sticking surface so as to reduce the bonding strength and the adhesiveness of rice and the inner wall of the liner, and finally, the effect of non-coating and non-sticking is realized.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a cooking utensil's inner bag, includes the body and by the turn-ups that the lateral wall top outwards buckles the formation of body, the body includes interior metal level and heat conduction layer at least, the interior surface on interior metal level is equipped with the antiseized surface that a plurality of micron-sized arch or recess constitute, antiseized surface's outer boundary extends to the interior kink of turn-ups at least, the interior metal level polishing or the turning attenuation of turn-ups's top surface forms smooth surface, the arch or the recess that are located interior kink outward border is polished or the turning forms antiseized surface and smooth surface's boundary line, polishing or the degree of depth of turning thickness is greater than bellied height or recess, and is less than 1/3 of interior metal level thickness.
In the inner container of the cooking utensil, the flanging comprises a flanging and a lower flanging formed by longitudinally and downwards turning the outer end of the flanging, the top surface of the flanging is polished or turned to form the smooth surface, and the inner end of the flanging is connected with the inner bending part.
In the inner container of the cooking utensil, the flanging comprises a flanging and a lower flanging formed by longitudinally and downwards turning the outer end of the flanging, the top surface of the flanging is polished or turned to form the smooth surface, and the inner end of the flanging is connected with the inner bending part.
In the inner container of the cooking utensil, the flanging further comprises an inner flanging, the inner flanging is formed by transversely and inwards folding the bottom end of the lower flanging, and the inner flanging is attached to the bottom surface of the outer flanging. In the above-mentioned cooking appliance, a cooking plate is provided,
in the inner container of the cooking utensil, the depth of the groove or the height of the bulge is 30-70 μm, and the equivalent diameter of the groove or the equivalent diameter of the bulge is 200-450 μm.
In the inner container of the cooking utensil, the interval between two adjacent grooves or the interval between two adjacent bulges is 400-600 mu m.
In the inner container of the cooking utensil, the inner surface of the groove or the raised surface is a micron-sized rough surface.
In the inner container of the cooking utensil, the anti-sticking surface is further provided with a protective film formed by PVD coating, and the thickness of the protective film is smaller than the depth of the groove or the height of the protrusion.
In the inner container of the cooking utensil, the protective film is a chromium film or a silicon dioxide film.
In the inner container of the cooking utensil, the thickness of the protective film is 0.5-2.5 μm.
The utility model also discloses a cooking utensil, which comprises a pot body and a pot cover, wherein the pot body comprises an outer pot and the inner container according to any technical scheme, and the inner container is placed in the outer pot.
The utility model has the beneficial effects that:
after the inner container is used for cooking, a small amount of water left in the inner container and small water drops formed by water vapor in a rice gap can be stored in a low-lying place between the grooves or the protrusions, so that a layer of water-wetting film is formed, the rice and the inner wall of the inner container are soaked by the water-wetting film, the bonding strength and the adhesiveness of the rice and the inner wall of the inner container are further reduced, the rice cannot be adhered to the inner wall of the inner container, the effect of non-adhesion of a zero coating is finally realized, the water-wetting film cannot fall off during cooking, and food and substances harmful to human bodies and the environment cannot be polluted; in addition, the outer boundary of the anti-sticking surface extends to at least the inner bending part of the flanging, so that the phenomenon of sticking to the pot at the inner bending part of the flanging can be avoided when the rice cooking amount is large, and the inner container can be cleaned conveniently by a user; in addition, as the top surface of the flanging is in sealing contact with the sealing ring of the pot mouth, rice cannot be in contact with the top surface of the flanging during cooking, namely, an anti-sticking surface is not required to be arranged on the top surface of the flanging, and the top surface of the flanging is polished or turned to form a smooth surface, so that the sealing effect of the sealing ring of the pot mouth can be improved; finally, the bulge or the groove positioned at the outer edge of the inner bending part is polished or turned to form a boundary between the anti-sticking surface and the smooth surface, so that a saw-tooth line formed at the outer boundary of the anti-sticking surface can be avoided, fingers can be effectively prevented from contacting the anti-sticking surface when the user holds the liner, and the hand feeling of holding the liner can be improved. In addition, because the thickness of the flanging top surface is polished and turned to be thin, the energy storage is small, the heat dissipation is improved, and the risk of scalding the hand of a user end is reduced after cooking is finished.
The flanging comprises an outer flanging and a lower flanging formed by longitudinally and downwards turning the outer end of the outer flanging, the top surface of the outer flanging is polished or turned to form a smooth surface, and the inner end of the outer flanging is connected with the inner bending part. By the design, the structural strength of the flanging can be enhanced, and the user can be given better lifting hand feeling, so that the user can conveniently take out the liner from the cooking utensil, and the use experience of the user is improved.
The flanging also comprises an inner flanging, the inner flanging is formed by transversely and inwards folding the bottom end of the lower flanging, and the inner flanging is attached to the bottom surface of the outer flanging. By the design, the whole structural strength of the flanging can be enhanced, and the flanging can be supported through the inner flanging, so that the deformation of the top surface of the flanging during polishing or turning can be avoided.
The depth of the grooves or the height of the protrusions is 30-70 μm, and the equivalent diameter of the grooves or the equivalent diameter of the protrusions is 200-450 μm. By the design, the processability of the grooves and the protrusions and the non-adhesive performance of the anti-adhesive surface can be considered, the problems that a water-wetting film cannot be formed and the anti-adhesive surface is difficult to process due to the fact that water cannot be stored due to undersize of the grooves or the protrusions are solved, and the problem that the inner container is difficult to clean due to the fact that rice grains are easy to clamp into the grooves or the protrusions and burnt and adhered due to the fact that the sizes of the grooves or the protrusions are too large can be solved.
The interval between two adjacent grooves or the interval between two adjacent protrusions is 400-600 μm. By the design, the adhesion effect caused by overlarge contact area with rice due to overlarge interval between two adjacent grooves or two adjacent bulges can be avoided, and the total area occupation ratio of the grooves or the bulges can be improved so as to improve the non-adhesion effect of the anti-adhesion surface; in addition, the workability can be considered, so that the processing cost can be reduced.
The inner surface of the groove or the surface of the bulge is a rough surface in the micron order. By the design, the inner surface of the groove can form a bionic concave-convex structure similar to lotus leaves, which is more beneficial to the formation of a water-wetting film, so that the contact area between rice and the inner surface of the groove is further reduced, and the non-sticking effect is further improved.
The anti-sticking surface is also provided with a protective film formed by PVD coating, and the thickness of the protective film is smaller than the depth of the groove or the height of the bulge. By the design, the surface performance of the liner can be further improved, the scratch problem caused by scratch on the anti-sticking surface is prevented, the gloss of the inner surface of the liner can be changed, and the attractiveness of the liner is improved; in addition, the thickness of the protective film is smaller than the depth of the grooves or the height of the bulges, so that the original rough structure at the low-lying positions between the grooves or the bulges can be prevented from being damaged.
The protective film is a chromium film or a silicon dioxide film. By the design, the wear-resistant and scratch-resistant performance of the protective film can be improved, the protective film has good chemical stability, and color change caused by reaction after the protective film is at a high temperature is avoided, so that the inner surface of the liner is free from scratch after long-time use, and the color change resistant effect is ensured.
The thickness of the protective film is 0.5-2.5 mu m. By the design, the protective film can be in a proper thickness, so that the problems that the scratch resistance of the protective film is reduced and the anti-sticking surface cannot be effectively protected due to the fact that the thickness of the protective film is too small can be avoided, and the problem that the manufacturing cost is increased due to the fact that the thickness of the protective film is too large can be avoided.
These features and advantages of the present utility model will be disclosed in detail in the following detailed description and the accompanying drawings.
[ description of the drawings ]
The utility model is further described with reference to the accompanying drawings:
FIG. 1 is a schematic view of a liner according to an embodiment of the present utility model;
FIG. 2 is an enlarged schematic view of a portion of FIG. 1A;
FIG. 3 is an enlarged partial schematic view of B in FIG. 1;
FIG. 4 is a partial cross-sectional view of a liner according to a first embodiment of the present utility model;
FIG. 5 is a top view of a liner according to an embodiment of the present utility model;
fig. 6 is a sectional view of a cooking appliance according to a second embodiment of the present utility model.
Reference numerals:
001. a pot body; 002. a pot cover; 100. a body; 110. a groove; 111. mastoid process; 200. flanging; 201. a smooth surface; 210. an inner bending part; 211. a dividing line; 220. a flanging; 230. a lower flanging is carried out; 240. an inner flanging; 300. a protective film; 400. an outer metal layer; 500. an inner metal layer; 600. and a heat conducting layer.
[ detailed description ] of the utility model
The utility model provides an inner container of a cooking utensil, which comprises a body and a flange formed by outwards bending the top end of the side wall of the body, wherein the body at least comprises an inner metal layer and a heat conducting layer, the inner surface of the inner metal layer is provided with an anti-sticking surface formed by a plurality of micro-scale protrusions or grooves, the outer boundary of the anti-sticking surface at least extends to the inner bending part of the flange, the inner metal layer on the top surface of the flange is polished or turned to be thinned to form a smooth surface, the protrusions or grooves on the outer edge of the inner bending part are polished or turned to form a boundary between the anti-sticking surface and the smooth surface, and the polished or turned thickness is larger than the height of the protrusions or the depth of the grooves and is smaller than 1/3 of the thickness of the inner metal layer.
After the inner container is used for cooking, a small amount of water left in the inner container and small water drops formed by water vapor in a rice gap can be stored in a low-lying place between the grooves or the protrusions, so that a layer of water-wetting film is formed, the rice and the inner wall of the inner container are soaked by the water-wetting film, the bonding strength and the adhesiveness of the rice and the inner wall of the inner container are further reduced, the rice cannot be adhered to the inner wall of the inner container, the effect of non-adhesion of a zero coating is finally realized, the water-wetting film cannot fall off during cooking, and food and substances harmful to human bodies and the environment cannot be polluted; in addition, the outer boundary of the anti-sticking surface extends to at least the inner bending part of the flanging, so that the phenomenon of sticking to the pot at the inner bending part of the flanging can be avoided when the rice cooking amount is large, and the inner container can be cleaned conveniently by a user; in addition, as the top surface of the flanging is in sealing contact with the sealing ring of the pot mouth, rice cannot be in contact with the top surface of the flanging during cooking, namely, an anti-sticking surface is not required to be arranged on the top surface of the flanging, and the top surface of the flanging is polished or turned to form a smooth surface, so that the sealing effect of the sealing ring of the pot mouth can be improved; finally, the bulge or the groove positioned at the outer edge of the inner bending part is polished or turned to form a boundary between the anti-sticking surface and the smooth surface, so that a saw-tooth line formed on the outer boundary of the anti-sticking surface can be avoided, and when a user holds the liner, fingers can be effectively prevented from contacting the anti-sticking surface, and the hand feeling of holding the liner can be improved; in addition, because the thickness of the flanging top surface is polished and turned to be thin, the energy storage is small, the heat dissipation is improved, and the risk of scalding the hand of a user end is reduced after cooking is finished.
The technical solutions of the embodiments of the present utility model will be explained and illustrated below with reference to the drawings of the embodiments of the present utility model, but the following embodiments are only preferred embodiments of the present utility model, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present utility model. In addition, it is to be understood that the terms "upper," "lower," "left," "right," "longitudinal," "transverse," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like, which refer to an orientation or positional relationship, are merely based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices/elements referred to must have a specific orientation or be configured and operated in a specific orientation, and thus are not to be construed as limiting the present utility model.
Example 1
Referring to fig. 1 to 5, in the inner container of the cooking apparatus in this embodiment, the inner container may be a bladder with an outwardly protruding sidewall, or may be a straight liner with a vertical sidewall, the inner container includes a body 100 and a flange 200 formed by bending the top end of the sidewall of the body 100 outwardly, the body 100 at least includes an inner metal layer 500 and a heat conducting layer 600, the inner metal layer 500 is located inside the heat conducting layer 600, the inner surface of the inner metal layer 500 is provided with an anti-sticking surface formed by a plurality of micro-scale grooves 110, the outer boundary of the anti-sticking surface extends at least to an inner bending portion 210 of the flange 200, the inner metal layer on the top surface of the flange 200 is polished or turned to form a smooth surface 201, the grooves on the outer edge of the inner bending portion 210 are polished or turned to form a boundary 211 between the anti-sticking surface and the smooth surface 201, and the polished or turned thickness is greater than the depth of the grooves 110 and less than 1/3 of the thickness of the inner metal layer 500.
After the rice cooking with the liner of the embodiment is completed, a small amount of water left in the liner and small water drops formed by water vapor in a rice gap can be stored in the groove 110, so that a layer of water-wetting film is formed, the water-wetting film wets the rice and the inner wall of the liner, the bonding strength and the adhesiveness of the rice and the inner wall of the liner are further reduced, the rice cannot be adhered to the inner wall of the liner, the effect of non-adhesion of a zero coating is finally realized, the non-adhesion of the zero coating cannot be fallen off during cooking, and food and substances harmful to human bodies and the environment cannot be polluted; in addition, the outer boundary of the anti-sticking surface extends to at least the inner bending part 210 of the flange 200, so that the phenomenon of sticking to the pot at the inner bending part 210 of the flange 200 can be avoided when the rice cooking amount is large, and the cleaning of the liner by a user is further facilitated; secondly, because the top surface of the flanging 200 is in sealing contact with the sealing ring of the pot mouth, rice cannot be in contact with the top surface of the flanging 200 during cooking, namely, an anti-sticking surface is not required to be arranged on the top surface of the flanging 200, the top surface of the flanging is polished or turned to form a smooth surface 201, the sealing effect of the sealing ring of the pot mouth can be improved, and the appearance of the liner can be improved; finally, the groove 110 at the outer edge of the inner bending part is polished or turned to form the boundary 211 between the anti-sticking surface and the smooth surface, so that the outer boundary of the anti-sticking surface is prevented from forming a saw-tooth line, thereby improving the appearance of the liner. When the user holds the liner, the finger can be effectively prevented from contacting the anti-sticking surface, and the hand feeling of holding is improved; in addition, because the thickness of the flanging top surface is polished and turned to be thin, the energy storage is small, the heat dissipation is improved, and the risk of scalding the hand of a user end is reduced after cooking is finished.
Specifically, the grooves 110 in this embodiment may be formed by laser processing, machining, etching, photolithography, etc., where the grooves 110 are randomly distributed or distributed in a matrix on the bottom surface of the liner and distributed in a plurality of annular arrays on the entire inner surface of the liner, so that the entire inner surface of the body 100 forms the anti-sticking surface, during processing, one side surface of the metal plate is firstly processed into the anti-sticking surface, then the metal plate is drawn and stamped to form the body 100, then the top end of the side wall of the body is bent outwards to form the flange 200, and the outer boundary of the anti-sticking surface is ensured to be located outside the outer edge of the inner bending portion 210, and finally the top surface of the flange 200 and the grooves 110 on the outer edge of the inner bending portion 210 are polished or turned. During polishing or turning, the inner metal layer 500 on the top surface of the flange is polished or turned to form the smooth surface 201, and the thickness of the polished or turned surface is greater than the depth of the groove 110 and less than 1/3 of the thickness of the inner metal layer 500. On the one hand the recess 110 may be eliminated and on the other hand the complete elimination of the inner metal layer 500 is avoided.
The flange 200 in this embodiment further includes a flange 220 and a lower flange 230 formed by vertically turning down the outer end of the flange 220, the top surface of the flange 220 is polished or turned to form the smooth surface 201, and the inner end of the flange 220 is connected with the inner bending portion 210. It should be noted that, the outer boundary of the anti-sticking surface may extend to the top surface of the outward flange 220, so as to avoid local cracking caused by too large bending angle when the outer end of the outward flange 220 is folded down longitudinally to form the downward flange 230 after being provided with the groove.
In addition, the flange 200 of the present embodiment further includes an inner flange 240, wherein the inner flange 240 is formed by folding the bottom end of the lower flange 230 laterally inward, and the inner flange 240 abuts against the bottom surface of the outer flange 220. By the design, the whole structural strength of the flanging 200 can be enhanced, and the flanging 220 can be supported through the inward flanging 240, so that the deformation of the top surface of the flanging 220 during polishing or turning can be avoided.
Next, as shown in fig. 3 and 4, in the present embodiment, the depth H of the groove is 30 μm to 70 μm, the equivalent diameter D of the groove 110 is 200 μm to 450 μm, and when the depth H of the groove 110 is less than 30 μm and the equivalent diameter D of the groove 110 is less than 200 μm, the groove 110 cannot store water and cannot form a water-wet film due to undersize, thereby reducing the non-stick performance of the anti-stick surface and simultaneously causing the problem that the anti-stick surface is difficult to process; when the depth H of the groove 110 is greater than 70 μm and the equivalent diameter D of the groove 110 is greater than 450 μm, rice grains are easy to be blocked into the groove 110 due to oversized grains, and the inner container is difficult to clean due to scorching and sticking; therefore, in this embodiment, the depth H of the groove 110 is preferably 50 μm, and the equivalent diameter D of the groove 110 is preferably 350 μm, so that the design can not only achieve the workability of the groove 110 and the non-stick property of the anti-sticking surface, but also avoid the problems that the water-wet film cannot be formed and the anti-sticking surface is difficult to process due to the insufficient size of the groove 110, and the rice grains are easy to be blocked into the groove 110 due to the oversized groove 110, and the inner container is difficult to clean due to the scorching and sticking. Of course, alternatively, the depth H of the groove 110 may also be, but not limited to, 30 μm, 40 μm, 60 μm, 70 μm, etc., and the equivalent diameter D of the groove 110 may also be, but not limited to, 200 μm, 250 μm, 300 μm, 400 μm, 500 μm, etc.
It should be noted that, in this embodiment, the shape of the groove 110 is not specifically limited, and the equivalent diameter is the maximum circumscribing dimension of the circumferential profile of the groove mouth, for example, in a specific embodiment, the shape of the groove is a circle, and the equivalent diameter refers to the diameter of the circle; in another specific embodiment, the shape of the groove is a regular hexagon, and the equivalent diameter refers to the diameter of the circumscribed circle of the regular hexagon; in another specific embodiment, the shape of the groove is rectangular, and the equivalent diameter refers to the width dimension between two short sides of the rectangle. Of course, the skilled person can set the grooves to be square or other shapes according to specific conditions such as processing technology requirements, and the description thereof is omitted herein.
In addition, in the embodiment, the interval W between two adjacent grooves 110 is 400 μm to 600 μm, and when the interval W between two adjacent grooves 110 is greater than 600 μm, the area of the inner surface of the portion between two adjacent grooves 110 is too large, so that the contact area between rice and the inner surface of the liner is increased, and the effect of rice adhesion occurs; when the distance W between two adjacent grooves 110 is smaller than 400 μm, the difficulty of processing the grooves 110 is increased, and the manufacturing cost is increased. For this reason, in this embodiment, the interval between two adjacent grooves 110 is preferably 500 μm, so that the design can not only avoid the adhesion effect caused by the overlarge contact area with rice due to the overlarge interval W between two adjacent grooves 110, but also improve the total area occupation ratio of the grooves 110 to promote the non-adhesion effect of the anti-adhesion surface; in addition, the workability can be considered, so that the processing cost can be reduced. Of course, alternatively, the spacing W between adjacent two grooves 110 may also be, but is not limited to, 400 μm, 450 μm, 550 μm, 600 μm, etc.
In order to further increase the anti-adhesion performance of the inner surface of the groove 110, in this embodiment, the inner surface of the groove 110 is a rough surface with a micron level, preferably, the inner surface of the groove 110 is a rough surface composed of a plurality of micro-level mastoid 111, and the mastoid structure is formed by photoetching machining or etching process, so that the inner surface of the groove 110 forms a bionic concave-convex structure similar to lotus leaves, which is more beneficial to the formation of a water-wetting film, so as to further reduce the contact area between rice and the inner surface of the groove 110, and further improve the non-adhesion effect.
It is understood that in other embodiments of the present utility model, the inner surface of the groove may be roughened by sand blasting, laser engraving, or electroplating.
Preferably, the anti-sticking surface in this embodiment is further provided with a protective film 300 formed by PVD coating, and the thickness of the protective film 300 is smaller than the depth of the groove 110. By the design, the surface performance of the liner can be further improved, the scratch problem caused by scratch on the anti-sticking surface is prevented, the gloss of the inner surface of the liner can be changed, and the attractiveness of the liner is improved; in addition, the thickness of the protective film 300 is smaller than the depth of the groove 110, so that the original rough structure of the groove 110 can be prevented from being damaged.
The protective film 300 is a chromium film or a silicon dioxide film. By the design, the wear-resistant and scratch-resistant performance of the protective film 300 can be improved, the protective film 300 has good chemical stability, and color change caused by reaction after the protective film is at a high temperature is avoided, so that the inner surface of the liner is free from scratch after long-time use, and the color change resistant effect is ensured.
Preferably, the thickness of the protective film 300 is less than the height of the mastoid 111, preferably 0.5 μm to 2.5 μm, when the thickness of the protective film 300 is less than 0.5 μm, the scratch resistance of the protective film 300 is reduced, the inner surface of the groove 110 and the inner surface of the liner between the adjacent two grooves 110 cannot be effectively protected, and when the thickness of the protective film 300 is more than 2.5 μm, the manufacturing cost is increased and the rough surface structure formed by the mastoid 111 is damaged, therefore, the thickness of the protective film 300 is preferably 1.5 μm in this embodiment, so that the protective film 300 is in a proper thickness, which can avoid the problems that the scratch resistance is reduced and the anti-sticking surface cannot be effectively protected due to the too small thickness of the protective film 300, and the problem that the manufacturing cost is increased due to the too large thickness of the protective film 300 and the rough surface of the groove 110 is damaged.
Finally, the body 100 in this embodiment further includes an outer metal layer 400, the heat-conducting layer 600 is an aluminum layer, the heat-conducting layer 600 is sandwiched between the outer metal layer 400 and the inner metal layer 500, the inner surface of the inner metal layer 500 is provided with the anti-adhesion surface, the outer metal layer 400 and/or the inner metal layer 500 are made of food-grade metal materials, such as SUS304 or SUS316L, so that the structural strength of the inner container can be ensured, the food safety can be ensured, and adverse effects of the inner container on the health of the user can be avoided.
It will be appreciated that in other embodiments of the utility model, the inner surface of the liner may also be provided with a release surface comprising a plurality of micro-scale protrusions, where the thickness of the polish or lathe cut is greater than the height of the protrusions and less than 1/3 of the thickness of the inner metal layer to form the smooth surface and parting line described above. The distribution form of the bulges can be referred to the distribution form of the grooves, the shapes of the bulges can be spherical crowns or hexagonal prisms and the like, the heights of the bulges are 30-70 mu m, and the equivalent diameters of the bulges are 200-450 mu m, so that the design can give consideration to the processability of the bulges and the non-stick property of the anti-sticking surface, the problems that a water-wetting film cannot be formed and the anti-sticking surface is difficult to process due to the fact that too small size of the bulges cannot store water can be solved, and the problem that rice grains are easy to be clamped in the depressions among the bulges and scorched and stuck to cause difficult cleaning of the inner container can be avoided. Preferably, the interval between two adjacent bulges is 400-600 mu m, so that the adhesion effect caused by overlarge contact area with rice due to overlarge interval between two adjacent bulges is avoided, and the total area occupation ratio of the bulges can be improved, so that the non-stick effect of the anti-sticking surface is improved; in addition, the processing property can be considered, so that the processing cost is reduced; finally, the surface of the bulge is a micron-sized rough surface, and the thickness of the protective film is smaller than the height of the bulge.
Example two
As shown in fig. 6, the embodiment also provides a cooking appliance, which comprises a pot body 001 and a pot cover 002, wherein the pot cover 002 and the pot body 001 can be hinged or can be arranged separately; the pot body 001 includes outer pot, and outer pot has cylindric accommodation space, and the inner bag can be put into accommodation space or take out in the accommodation space in order to conveniently wash it, and outer pot is located the bottom of accommodation space and is equipped with the dish that generates heat or electromagnetic wire coil that heats the inner bag to this realizes the heating to eating the material in the inner bag through the mode of heating the inner bag.
While the utility model has been described in terms of embodiments, it will be appreciated by those skilled in the art that the utility model is not limited thereto but rather includes the drawings and the description of the embodiments above. Any modifications which do not depart from the functional and structural principles of the present utility model are intended to be included within the scope of the appended claims.
Claims (10)
1. The utility model provides a cooking utensil's inner bag, includes the body and by the turn-ups that the lateral wall top outwards buckles and forms of body, its characterized in that, the body includes interior metal level and heat conduction layer at least, the interior surface of interior metal level is equipped with the antiseized surface that a plurality of micron-sized arch or recess constitute, antiseized surface's outer boundary extends to the interior kink of turn-ups at least, the interior metal level polishing or turning attenuation of the top surface of turn-ups forms smooth surface, the arch or the recess at interior kink outward border is polished or turned and is formed antiseized surface and smooth surface's boundary line, polishing or turned thickness is greater than protruding height or the degree of depth of recess, and is less than 1/3 of interior metal level thickness.
2. The inner container of a cooking utensil according to claim 1, wherein the flange comprises a flange and a lower flange formed by folding an outer end of the flange longitudinally downward, a top surface of the flange is polished or turned to form the smooth surface, and an inner end of the flange is connected with the inner folding portion.
3. The liner of claim 2, wherein the flange further comprises an inner flange formed by the bottom end of the lower flange being folded laterally inward, the inner flange abutting the bottom surface of the outer flange.
4. A liner for a cooking apparatus according to claim 1, wherein the depth of the recess or the height of the protrusion is 30 μm to 70 μm, and the equivalent diameter of the recess or the equivalent diameter of the protrusion is 200 μm to 450 μm.
5. A liner for a cooking utensil as claimed in claim 1, wherein the spacing between adjacent two of the grooves or the spacing between adjacent two of the protrusions is 400 μm to 600 μm.
6. The liner of claim 1, wherein the inner surface of the recess or the raised surface is a micro-scale roughened surface.
7. A liner for a cooking utensil according to any one of claims 1 to 6, wherein the anti-sticking surface is further provided with a protective film formed by PVD coating, and the protective film has a thickness smaller than the depth of the groove or the height of the protrusion.
8. The liner of claim 7, wherein the protective film is a chrome film or a silicon dioxide film.
9. The liner of claim 7, wherein the protective film has a thickness of 0.5 μm to 2.5 μm.
10. A cooking appliance comprising a pot body and a pot cover, wherein the pot body comprises an outer pot and the inner container of any one of claims 1 to 9, the inner container being placed in the outer pot.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320808430.0U CN219846135U (en) | 2023-04-07 | 2023-04-07 | Inner container of cooking utensil and cooking utensil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320808430.0U CN219846135U (en) | 2023-04-07 | 2023-04-07 | Inner container of cooking utensil and cooking utensil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117359238A (en) * | 2023-12-08 | 2024-01-09 | 九阳股份有限公司 | Inner container manufacturing method and rice cooking utensil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117359238A (en) * | 2023-12-08 | 2024-01-09 | 九阳股份有限公司 | Inner container manufacturing method and rice cooking utensil |
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